Python's urllib.request wraps OSError in URLError during the connection
phase, but NOT during response reading (getresponse()). This means a
timeout that fires after the TCP handshake completes, e.g. when a service
accepts the connection but hasn't sent a response yet, propagates as a
bare TimeoutError that bypasses the exception handler, killing the entire
until() retry loop on the first attempt.
Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
Joachim Wiberg
b5a292d7dd